We      at the airport; otherwise we would have arrived home by lunch time.
#99372
A
had delayed
B
were delayed
C
had been delayed
D
have delayed
推荐题目
—I’ll come to attend your speech at 9:00 tomorrow morning. —I’m sorry. By then my speech _________ and I __________ TV at home. 
#102829
A
will end; will watch
B
is to end; will watch
C
will be ended; am going to watch
D
will have ended; will be watching
Great changes_____ in the small city in the last 20 years.
#102827
A
have taken place
B
took place
C
had taken place
D
are happening
By the time he was twelve, Edison _______ to make a living by himself.
#101794
A
would begin
B
has begun
C
had begun
D
began